Содержание
- 2. Heart and Blood Vessels
- 3. The Human circulatory system HEART BLOOD VESSELS
- 4. HEART Is a muscular organ Consist 4 chambers two ventricles two atria Valves divide ventricle and
- 5. VESSELS Three main type blood vessel: Coming from the heart are called ARTERIAS That come to
- 6. ARTERIES Have dense, smooth and elastic walls Structure of walls allows the arteries to withstand a
- 7. Earthworm Circulatory system Does not have a heart Has small body vessels Vessels pump the blood
- 8. Mollusks circulatory system Have a Heart Consist of one Ventricle and one or two Atria Vessels
- 10. Скачать презентацию